Hose-coupling.



PATENTED MAY 26, 1903.

' J. WITTMAN. HOSE COUPLING.

APPLICATION FILED JAN. 5. 1903.

N0 MODEL.

JWW Jlcob W/Tr/vA/v *5? UNITED STATES Patented May 26, 1903.

PATENT ()FFICE.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent No 729,479, dated May 26,103. Application filed January 5, 1903. Serial No. 137.952. (No model.)

To all whom it may concern:

Be it known that I, JAooB WITTMAN, a citi zen of the United States ofAmerica, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inHose-Coup lings, of which the following is a specification, referencebeing had therein to the accompanying drawings. v

This invention relates to certain new and useful improvements inhose-couplings, and

relates more particularly to that class that may be readily coupledwithout the use of screw-threads.

The present invention has for its object the provision of novel meanswhereby a watertight coupling may be obtained that will be strong,durable, and comparatively inexpensive to manufacture.

With the above and other objects in view the invention consists in thenovel construction, combination, and arrangement of parts to behereinafter more fully described, and specifically pointed out in theclaim.

In describing-the invention in detail reference is had to theaccompanying drawings, formingapart of this specification, and whereinlike numerals of reference indicate like parts throughout the severalviews,in which Figure 1 is a perspective view of myim: provedhose-coupling. Fig. 2 is a front elevation thereof. Fig. 3 is averticalsectional view. Fig. 4 is a side elevation. Fig. 5 is alongitudinal vertical sectional View showing the maleand female membersof the coupling disconnected. 7 r a In the drawings thereference-numeral 1 represents the male member, and 2 the female member,of the coupling. Upon the male member 1 are formed lugs 3, between whichare pivotally secured operating-levers 4,

which carry studs 5 on their under faces and at their forward end. Theother end of the operating-levers is engaged by spiral springs 6,engaging the under faces of the levers. These springs are secured insuitable recesses which form seats for the springs. The female member2of the coupling has formed on its exterior a. spiral groove 7, whichterminates in recesses 8, forming seats to receive the studs 5 of theoperating-levers. A gasket or washer 9 is arranged in the female member2, which forms a water-tight connection between the parts when coupledtogether.

The operation of my improved hose-coupling is as follows: Theoperating-levers 4 are compressed,- thereby permitting the female memberto be placed in position, and the studs 5 will ride in the spiral grooveuntil they are seated in the recesses formed in this groove, and theextension of the member 1 will abut against the washer 9, forming aperfectly water-tight joint. The spiral grooves act as screw-threads,giving the same effect when engaged by the studs of the levers,

serve as bearing for the studs on the lovers, and permit the same toexert a force tending to draw the parts together, the studs seating inthe recesses in the grooves when the male and female sections are inclose contact. In order to uncouple the hose-sections, it is onlynecessary to again depress the springs and operating levers, therebydisengaging the studs from their seats and permitting the section 2 tobe turned and disengaged from the section 1.

The many advantages obtained by the use of my improved device will bereadily apparent from the foregoing description, taken in connectionwith the accompanying drawings. It will be noted that various changesmay be made in the details of construction without departing from thegeneral spirit of my invention. p

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, isr In a hose-coupling, the combination of amale and female section, pivoted operatinglevers carriedby one of saidsections, means seated in said lever-carrying section for operating saidlevers, a groove formed in the other of said sections extending aroundthe same at an angle to the longitudinal axis of said sections, saidgroove having seats formed at the ends thereof, and means integral withthe levers adapted to engage with the groove, adapted upon rotation ofone member to draw the coupling together, substantially as described. V

In testimony whereof I affix my signature in the presence of twowitnesses.

JACOB WITTMAN.

Witnesses:

H; C. EVERT, A. M. WILsoN.

